B
brainii
Ok, so here's my situation. I have a cold water tank stored on a 2m high tower, which is on top of my roof of my 2 storey house.
The cold water tank has an "in" pipe, coming from the city supply which fills it up.
This has been fine for the past few years (house and all plumbing stuff is about 7 years old), but for the last 2 months or so, SOMETIMES, when we use cold water and the water tank fills up, the "in" pipe vibrates (lasts max a few minutes), which then bangs slightly on the roof, which we can hear inside the house. I've had this kind of banging before in a different house, (when I used to have a pressure unit), and it actually loosened/cracked the pipe joints and I had water leaks. The solution then was to put wood planks on the roof and secure the pipe to them. However I can't do this now as the pipe goes 2m up in the water tank, and there is nothing to secure it to, it just hangs down from the tank to the roof, and it's already secured on wood on the roof..
The keyword here is SOMETIMES. The vibrating mostly happens between 12pm-5pm. I live in Cyprus so it's really hot during those times, I don't know if this somehow increases the pressure or what.. However, RARELY it happens at other times too, such as later in the evening around 9-10pm..
The city's water pressure is fine (not low or high). It's not water hammer. Could it be that the ballcock in the tank somehow failed after only 7 years???
The cold water tank has an "in" pipe, coming from the city supply which fills it up.
This has been fine for the past few years (house and all plumbing stuff is about 7 years old), but for the last 2 months or so, SOMETIMES, when we use cold water and the water tank fills up, the "in" pipe vibrates (lasts max a few minutes), which then bangs slightly on the roof, which we can hear inside the house. I've had this kind of banging before in a different house, (when I used to have a pressure unit), and it actually loosened/cracked the pipe joints and I had water leaks. The solution then was to put wood planks on the roof and secure the pipe to them. However I can't do this now as the pipe goes 2m up in the water tank, and there is nothing to secure it to, it just hangs down from the tank to the roof, and it's already secured on wood on the roof..
The keyword here is SOMETIMES. The vibrating mostly happens between 12pm-5pm. I live in Cyprus so it's really hot during those times, I don't know if this somehow increases the pressure or what.. However, RARELY it happens at other times too, such as later in the evening around 9-10pm..
The city's water pressure is fine (not low or high). It's not water hammer. Could it be that the ballcock in the tank somehow failed after only 7 years???
